Base | Representation |
---|---|
bin | 11110001001011… |
… | …01001010110001 |
3 | 122121212020100220 |
4 | 33010231022301 |
5 | 1004220014300 |
6 | 41032203253 |
7 | 6160354644 |
oct | 1704551261 |
9 | 577766326 |
10 | 252891825 |
11 | 11a82940a |
12 | 70839529 |
13 | 40515a44 |
14 | 2582da5b |
15 | 17305da0 |
hex | f12d2b1 |
252891825 has 24 divisors (see below), whose sum is σ = 422035488. Its totient is φ = 133610880.
The previous prime is 252891823. The next prime is 252891833. The reversal of 252891825 is 528198252.
252891825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 252891825 - 21 = 252891823 is a prime.
It is not an unprimeable number, because it can be changed into a prime (252891823) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7732 + ... + 23781.
It is an arithmetic number, because the mean of its divisors is an integer number (17584812).
Almost surely, 2252891825 is an apocalyptic number.
252891825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
252891825 is a deficient number, since it is larger than the sum of its proper divisors (169143663).
252891825 is a wasteful number, since it uses less digits than its factorization.
252891825 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31633 (or 31628 counting only the distinct ones).
The product of its digits is 115200, while the sum is 42.
The square root of 252891825 is about 15902.5729050365. The cubic root of 252891825 is about 632.3801998833.
The spelling of 252891825 in words is "two hundred fifty-two million, eight hundred ninety-one thousand, eight hundred twenty-five".
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